In other words, knc will reap the benefits of your investment and all the bitcoins they can mine, then pass the leftovers at massively difficulty to people on 1st July. You are paying for that. The physical delivery of the product will just be to end any obligation to you and will most certainly be utterly useless hardware by the time it physically arrives. The cost to power it will probably be more than it can mine back.
...plus, other ASIC producers are already building their "mining" farms. This is certain and there is no deterrence to stop them to do it. There is, indeed, a very attractive incentive to rise the margin of profits and shift all the risks to the customers. When KnC delivers their customers will have to compete with a difficulty generated by "mining" farms from all ASIC producers.